Patents by Inventor Tetsumi Irie

Tetsumi Irie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10588921
    Abstract: Provided is a pharmaceutical composition for the treatment of disorders such as Niemann-Pick disease and GM1 gangliosidosis which are caused by the storage of cholesterol, such as lysosomal storage disease. Also provided is a method for screening for said pharmaceutical compositions that uses iPS cell strains that phenocopy phentotypes of these disorders. Provided is a pharmaceutical composition for the treatment and/or prevention of lysosomal storage disease, characterized by containing hydroxypropyl-?-cyclodextrin as an active ingredient. Also provided are an iPS cell strain derived from patients suffering from intractable disorders and prepared using a new temperature-sensitive Sendai virus vector, and a screening method for pharmaceuticals using said iPS cell strain.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 17, 2020
    Assignee: NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Takumi Era, Tetsumi Irie
  • Publication number: 20170216342
    Abstract: Provided is a pharmaceutical composition for the treatment of disorders such as Niemann-Pick disease and GM1 gangliosidosis which are caused by the storage of cholesterol, such as lysosomal storage disease. Also provided is a method for screening for said pharmaceutical compositions that uses iPS cell strains that phenocopy phentotypes of these disorders. Provided is a pharmaceutical composition for the treatment and/or prevention of lysosomal storage disease, characterized by containing hydroxypropyl-?-cyclodextrin as an active ingredient. Also provided are an iPS cell strain derived from patients suffering from intractable disorders and prepared using a new temperature-sensitive Sendai virus vector, and a screening method for pharmaceuticals using said iPS cell strain.
    Type: Application
    Filed: December 3, 2014
    Publication date: August 3, 2017
    Applicants: NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY, NIHON SHOKUHIN KAKO CO., LTD.
    Inventors: Takumi ERA, Tetsumi IRIE
  • Patent number: 5888755
    Abstract: Provided is a method of determining the amount of cholesterol in high-density lipoprotein (HDL), which comprises reacting an HDL-containing sample with cholesterol esterase and cholesterol oxidase or cholesterol dehydrogenase in the presence of a reagent for aggregating lipoproteins- except HDL, and determining the amount of hydrogen peroxide or reductive co-enzyme formed therein.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: March 30, 1999
    Assignee: Kyowa Medex Co., Ltd.
    Inventors: Kazuhito Miyauchi, Akira Miike, Eiko Shutoh, Hiroyuki Sugiuchi, Tetsumi Irie, Kaneto Uekama, Susumu Ohsawa
  • Patent number: 5888827
    Abstract: Cholesterol in low-density lipoprotein (LDL) or very low-density lipoprotein (VLVL) in a sample is determined in the presence of a sugar compound and/or a protein-solubilizing agent.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: March 30, 1999
    Assignee: Kyowa Medex Co., Ltd.
    Inventors: Norihiko Kayahara, Toshio Tatano, Eiko Shutoh, Hiroyuki Sugiuchi, Tetsumi Irie, Kaneto Uekama
  • Patent number: 5854281
    Abstract: The present invention provides a preparation for percutaneous absorption comprising as an effective component a prostaglandin I.sub.2 derivative and a fatty acid or a derivative thereof, or a mixture of two or more of these, which has high percutaneous permeability of the PGI.sub.2 derivative. Particularly, the present invention provides a preparation for percutaneous absorption comprising 5,6,7-trinor-4,8-inter-m-phenylene PGI.sub.2 derivative and a C.sub.6 -C.sub.24 fatty acid, a salt thereof or an ester thereof, or a mixture of two or more of these, which has high percutaneous permeability of the PGI.sub.2 derivative. This preparation for percutaneous absorption suggests a possibility to last pharmacological effects and to reduce side effects. Thus, the preparation is expected to be used for therapy of various diseases, aiming at topical and systemic actions.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: December 29, 1998
    Assignee: Toray Industries, Inc.
    Inventors: Kaneto Uekama, Tetsumi Irie, Michio Hara, Yasuhide Horiuchi
  • Patent number: 5736406
    Abstract: Provided are a method of determining the amount of cholesterol in high-density lipoprotein (HDL), which comprises measuring the amount of cholesterol in low-density lipoprotein (LDL), very-low-density lipoprotein (VLDL) and chylomicron (CM) in a sample in the presence of a sugar compound and/or a protein solubilizing agent, and calculating the difference between the amount of cholesterol in LDL, VLDL and CM and the total amount of cholesterol in the sample, and a method of determining the amount of cholesterol in HDL, which comprises measuring the amount of cholesterol in HDL in a sample in the presence of a sugar compound and/or a protein solubilizing agent.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: April 7, 1998
    Assignee: Kyowa Medex Co., Ltd.
    Inventors: Kazuhito Miyauchi, Norihiko Kayahara, Toshio Tatano, Eiko Shutoh, Hiroyuki Sugiuchi, Tetsumi Irie, Kaneto Uekama, Susumu Ohsawa
  • Patent number: 5691159
    Abstract: Provided is a method of determining the amount of cholesterol in high-density lipoprotein (HDL), which comprises reacting an HDL-containing sample with cholesterol esterase and cholesterol oxidase or cholesterol dehydrogenase in the presence of a reagent for aggregating lipoproteins except HDL, and determining the amount of hydrogen peroxide or reductive co-enzyme formed therein.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: November 25, 1997
    Assignee: Kyowa Medex Co., Ltd.
    Inventors: Kazuhito Miyauchi, Akira Miike, Eiko Shutoh, Hiroyuki Sugiuchi, Tetsumi Irie, Kaneto Uekama, Susumu Ohsawa
  • Patent number: 5120720
    Abstract: The dissolution of lipophilic compounds in aqueous solutions of hydroxypropylcyclodextrins can be accelerated by the addition of co-solubilizers, such as ethanol or ammonia, which again can be removed, together with water, by evaporation or by freeze-drying leaving lipophile: hydroxypropylcyclodextrin complexes as a residue. The co-solubilizer method was used successfully with steroid drugs (5-androstene-3.beta.,17.beta.-diol, 4-androstene-3,17-dione, dehydroepiandrosterone, dexamethasone, 5-.alpha.-dihydro-testosterone, 6-methylprednisolone, and testosterone), peptides (gramicidin S) and a macrocyclic antibiotic (amphotericin B). The complexes prepared in this manner were amorphous and possessed satisfactory stability.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: June 9, 1992
    Assignee: The United States of America as represented by the Secretary of the Department of Health & Human Services
    Inventors: Josef Pitha, Juan J. Torres-Labandeira, Tetsumi Irie